Need help with False Knock

[Grabber07']

Wondering if any of you guys have dealt with it? My datalogs are showing 1 to 4 degrees being pulled due to knock and Im looking for a little guidance.

2014 GT500

Current Mods:

-2.39 Upper Pulley
-ATI 10% lower pulley
-JLT CAI
-CJ TB
-MRT O/R H
-Bobs Oil Seperator
-ID 1000 Injectors
-KB Comp BAP
-E85
-Lund Tuned

Tested the E-85 at the pump last night and showed to be about E88 to E90.

A few things I am going to look at:
1) Intercooler Pump
2) Exhaust leak
3) Exhaust touching body of car

Any other ideas would be greatly appreciated

 

[railroad]

Would upping your octane cover up the possible issues or narrow it down to the combustion chamber ?

 

[Grabber07']

Would upping your octane cover up the possible issues or narrow it down to the combustion chamber ?

Im running E88, dont think octane is the issue.

 

[Turbosixx]

Yeah I'd say its false, no way you're making that fuel knock.

 

[Snoopy49]

Did it throw any codes?

 

[BOSSPOWER]

I am running E85 and no knock here. Check your exhaust and see if it is touching somewhere.

Manuel

 

[Grabber07']

Did it throw any codes?

No codes

 

[1320 Junkie]

Have you wrenched on the car lately and possibly left a tool on the motor? I seen this happen believe it or not...friend left a 3/8 extension on his valve cover and was rattling and ecu detected knock and pulled 6*

 

[Grabber07']

Have you wrenched on the car lately and possibly left a tool on the motor? I seen this happen believe it or not...friend left a 3/8 extension on his valve cover and was rattling and ecu detected knock and pulled 6*

I'll definitely take a look, scary thought!

 

[BrunotheBoxer]

Have you wrenched on the car lately and possibly left a tool on the motor? I seen this happen believe it or not...friend left a 3/8 extension on his valve cover and was rattling and ecu detected knock and pulled 6*

Sounds like an episode of Seinfeld but it was a doctors with jr mints instead.

 

[Snoopy49]

 

[Grabber07']

View attachment 16492

Have not received a code, I am only seeing the knock sensors triggered through datalogging. So no DTC has been triggered. I will definitely take a look at the spark plugs, that could be a possibility.

 

[wakebum2507]

I told you I'd come help you! i need to adjust my exhaust anyways, and can bring the ramps up to your place. super simple.

we need both cars to be ready for street car takeover in two weeks...and you need to get the tuning bugs worked out!

don't want anymore auto TT 5.0's sneaking up on you at 160 again do you....?

 

[Krieger]

Wondering if any of you guys have dealt with it? My datalogs are showing 1 to 4 degrees being pulled due to knock and Im looking for a little guidance.

Believe it or not I used to get false knock as a result of the squishy transmission mount on an LS1 powered trans am with a SPEC clutch.
After installing a stiffer bushing I stopped getting KR.

 

[Grabber07']

I told you I'd come help you! i need to adjust my exhaust anyways, and can bring the ramps up to your place. super simple.

we need both cars to be ready for street car takeover in two weeks...and you need to get the tuning bugs worked out!

don't want anymore auto TT 5.0's sneaking up on you at 160 again do you....?

Hey I had him from 40 to 155, so technically I won.... I attribute getting caught due to knock and no lower pulley I now have the lower, so just need to get rid of the knock!

 

[wakebum2507]

Let me know when you want to get that monster truck in the air! I'll help out.

 

[03terminat0r]

Wondering if any of you guys have dealt with it? My datalogs are showing 1 to 4 degrees being pulled due to knock and Im looking for a little guidance.

2014 GT500

Current Mods:

-2.39 Upper Pulley
-ATI 10% lower pulley
-JLT CAI
-CJ TB
-MRT O/R H
-Bobs Oil Seperator
-ID 1000 Injectors
-KB Comp BAP
-E85
-Lund Tuned

Tested the E-85 at the pump last night and showed to be about E88 to E90.

A few things I am going to look at:
1) Intercooler Pump
2) Exhaust leak
3) Exhaust touching body of car

Any other ideas would be greatly appreciated

Any update? Did you ever solve the false knock?